diff --git a/naga/src/proc/mod.rs b/naga/src/proc/mod.rs
index ddb42a2c52..6dc677ff23 100644
--- a/naga/src/proc/mod.rs
+++ b/naga/src/proc/mod.rs
@@ -216,8 +216,8 @@ impl crate::Literal {
             (value, crate::ScalarKind::Sint, 4) => Some(Self::I32(value as _)),
             (value, crate::ScalarKind::Uint, 8) => Some(Self::U64(value as _)),
             (value, crate::ScalarKind::Sint, 8) => Some(Self::I64(value as _)),
-            (1, crate::ScalarKind::Bool, 4) => Some(Self::Bool(true)),
-            (0, crate::ScalarKind::Bool, 4) => Some(Self::Bool(false)),
+            (1, crate::ScalarKind::Bool, crate::BOOL_WIDTH) => Some(Self::Bool(true)),
+            (0, crate::ScalarKind::Bool, crate::BOOL_WIDTH) => Some(Self::Bool(false)),
             _ => None,
         }
     }
diff --git a/naga/tests/out/glsl/constructors.main.Compute.glsl b/naga/tests/out/glsl/constructors.main.Compute.glsl
index 4b4b0e71a4..c28401d0b4 100644
--- a/naga/tests/out/glsl/constructors.main.Compute.glsl
+++ b/naga/tests/out/glsl/constructors.main.Compute.glsl
@@ -31,7 +31,6 @@ void main() {
     uvec2 cit0_ = uvec2(0u);
     mat2x2 cit1_ = mat2x2(vec2(0.0), vec2(0.0));
     int cit2_[4] = int[4](0, 1, 2, 3);
-    bool ic0_ = bool(false);
     uvec2 ic4_ = uvec2(0u, 0u);
     mat2x3 ic5_ = mat2x3(vec3(0.0, 0.0, 0.0), vec3(0.0, 0.0, 0.0));
 }
diff --git a/naga/tests/out/hlsl/constructors.hlsl b/naga/tests/out/hlsl/constructors.hlsl
index 232494fa21..39f3137605 100644
--- a/naga/tests/out/hlsl/constructors.hlsl
+++ b/naga/tests/out/hlsl/constructors.hlsl
@@ -49,7 +49,6 @@ void main()
     uint2 cit0_ = (0u).xx;
     float2x2 cit1_ = float2x2((0.0).xx, (0.0).xx);
     int cit2_[4] = Constructarray4_int_(0, 1, 2, 3);
-    bool ic0_ = bool((bool)0);
     uint2 ic4_ = uint2(0u, 0u);
     float2x3 ic5_ = float2x3(float3(0.0, 0.0, 0.0), float3(0.0, 0.0, 0.0));
 }
diff --git a/naga/tests/out/msl/constructors.msl b/naga/tests/out/msl/constructors.msl
index b29e2468b0..6733568a92 100644
--- a/naga/tests/out/msl/constructors.msl
+++ b/naga/tests/out/msl/constructors.msl
@@ -39,7 +39,6 @@ kernel void main_(
     metal::uint2 cit0_ = metal::uint2(0u);
     metal::float2x2 cit1_ = metal::float2x2(metal::float2(0.0), metal::float2(0.0));
     type_11 cit2_ = type_11 {0, 1, 2, 3};
-    bool ic0_ = static_cast<bool>(bool {});
     metal::uint2 ic4_ = metal::uint2(0u, 0u);
     metal::float2x3 ic5_ = metal::float2x3(metal::float3(0.0, 0.0, 0.0), metal::float3(0.0, 0.0, 0.0));
 }
diff --git a/naga/tests/out/spv/constructors.spvasm b/naga/tests/out/spv/constructors.spvasm
index 1a481aa95e..615a31dc1b 100644
--- a/naga/tests/out/spv/constructors.spvasm
+++ b/naga/tests/out/spv/constructors.spvasm
@@ -67,17 +67,18 @@ OpDecorate %17 ArrayStride 4
 %56 = OpConstantComposite  %14  %55 %55
 %57 = OpConstantComposite  %9  %21 %21
 %58 = OpConstantComposite  %8  %57 %57
-%59 = OpConstantComposite  %14  %55 %55
-%60 = OpConstantComposite  %7  %21 %21 %21
-%61 = OpConstantComposite  %20  %60 %60
-%62 = OpConstantNull  %20
-%64 = OpTypePointer Function %6
-%65 = OpConstantNull  %6
+%59 = OpConstantFalse  %13
+%60 = OpConstantComposite  %14  %55 %55
+%61 = OpConstantComposite  %7  %21 %21 %21
+%62 = OpConstantComposite  %20  %61 %61
+%63 = OpConstantNull  %20
+%65 = OpTypePointer Function %6
+%66 = OpConstantNull  %6
 %44 = OpFunction  %2  None %45
 %43 = OpLabel
-%63 = OpVariable  %64  Function %65
-OpBranch %66
-%66 = OpLabel
-OpStore %63 %47
+%64 = OpVariable  %65  Function %66
+OpBranch %67
+%67 = OpLabel
+OpStore %64 %47
 OpReturn
 OpFunctionEnd
\ No newline at end of file
diff --git a/naga/tests/out/wgsl/constructors.wgsl b/naga/tests/out/wgsl/constructors.wgsl
index a8f62dfecd..0e5eec734a 100644
--- a/naga/tests/out/wgsl/constructors.wgsl
+++ b/naga/tests/out/wgsl/constructors.wgsl
@@ -26,7 +26,6 @@ fn main() {
     let cit0_ = vec2(0u);
     let cit1_ = mat2x2<f32>(vec2(0f), vec2(0f));
     let cit2_ = array<i32, 4>(0i, 1i, 2i, 3i);
-    let ic0_ = bool(bool());
     let ic4_ = vec2<u32>(0u, 0u);
     let ic5_ = mat2x3<f32>(vec3<f32>(0f, 0f, 0f), vec3<f32>(0f, 0f, 0f));
 }